Caster



FIG. 1 is a perspective view of a caster showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof, the undisclosed left side being a mirror image;

FIG. 4 is a top plan view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a cross-sectional view thereof, taken along line 7—7 of FIG. 2;

FIG. 8 is a cross-sectional view thereof; taken along line 8—8 of FIG. 3;

FIG. 9 is a perspective view of a second embodiment of a caster, it being understood that the only difference from FIG. 1 is a the broken line element;

FIG. 10 is a perspective view of a third embodiment of a caster, wherein the rear elevational view of said FIG. 10 is the same as in FIG. 5;

FIG. 11 is a front elevational view thereof;

FIG. 12 is a right side elevational view thereof; the undisclosed left side being a mirror image;

FIG. 13 is a top plan view thereof;

FIG. 14 is a bottom plan view thereof; and,

FIG. 15 is a cross-sectional view thereof, taken along line 15—15 of FIG. 11. 

The ornamental design of a caster, as shown and described. 